Based on the MrBeastify extension https://addons.mozilla.org/en-US/firefox/addon/youtube-mrbeastify/ this extension will change your YouTube thumbnails to include Tamers12345, the god of Sonic Underground.

Install

• License: GNU General Public License v3.0 or later
• Weekly downloads: 0
• Average daily users: 3
• Rating: 5/5 of 1 ratings
• Created: 2023-07-28 15:47:57
• Last updated: 2023-07-29 15:50:28
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/youtube-tamers12345ify/
• API: {3c13eb2d-3f8e-43f8-8acb-7e0e092ccbab}